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标题：Disk of 2MASS 15491331−3539118 = GQ Lup C as seen by HST and WISE ⋆
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作者：C. Lazzoni ; R. Gratton ; J. M. Alcalá 等
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2020
卷号：635
页码：1-4
DOI：10.1051/0004-6361/202037622
语种：English
出版社：EDP Sciences
摘要：Aims.Very recently, a second companion on a wider orbit has been discovered around GQ Lup. This is a low-mass accreting star that is partially obscured by a disk seen at high inclination. If detected, this disk may be compared to the known disk around the primary.Methods.We detected this disk on archive HST and WISE data.Results.The extended spectral energy distribution provided by these data confirms the presence of accretion from Hαemission and UV excess, and shows an IR excess attributable to a warm disk. In addition, we resolved the disk on the HST images. It is found to be roughly aligned with the disk of the primary. Both of them are roughly aligned with the Lupus I dust filament containing GQ Lup.
关键词：enstars: individual: GQ Lupstars: individual: 2MASS 15491331−3539118techniques: high angular resolutionprotoplanetary disks